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Range selection in MapItemsControl

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ClemensFischer 2025-03-17 10:56:42 +01:00
parent da63e55fd4
commit 1fc35d90c0
4 changed files with 41 additions and 9 deletions
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37
MapControl/Shared/MapItemsControl.cs
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@ -78,5 +78,42 @@ namespace MapControl
{
SelectItemsByPosition(rect.Contains);
}
internal static void SetSelectedItemsRange(MapItem mapItem)
{
if (ItemsControlFromItemContainer(mapItem) is MapItemsControl mapItemsControl &&
mapItemsControl.SelectionMode != SelectionMode.Single)
{
var pos = MapPanel.GetViewPosition(mapItem);
if (pos.HasValue)
{
var xMin = pos.Value.X;
var xMax = pos.Value.X;
var yMin = pos.Value.Y;
var yMax = pos.Value.Y;
if (mapItemsControl.SelectedItem != null)
{
var selectedMapItem = mapItemsControl.ContainerFromItem(mapItemsControl.SelectedItem);
if (selectedMapItem != mapItem)
{
pos = MapPanel.GetViewPosition(selectedMapItem);
if (pos.HasValue)
{
xMin = Math.Min(xMin, pos.Value.X);
xMax = Math.Max(xMax, pos.Value.X);
yMin = Math.Min(yMin, pos.Value.Y);
yMax = Math.Max(yMax, pos.Value.Y);
}
}
}
mapItemsControl.SelectItemsInRect(new Rect(xMin, yMin, xMax - xMin, yMax - yMin));
}
}
}
}
}